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731.

In disc harrow, a device used to provide a distance between two discs mounted on same gang axle is:

A.	Scraper	B.	Gang
C.	Spool	D.	Arbor bolt

732.

A shaft of disc harrow on which the number of discs is mounted is:

A.	Standard	B.	Arbor bolt
C.	Spacer	D.	Scraper

733.

The increase in tilt angle of disc plough influences:

A.	Penetration of disc	B.	Width of cut
C.	Reduce penetration of disc	D.	Reduce width of cut

734.

The tilt angle of disc plough influences:

A.	Depth of cut	B.	Width of cut
C.	Both (a) & (b)	D.	None of these

735.

The disc angle of disc plough influences:

A.	Depth of cut	B.	Width of cut
C.	Both (a) & (b)	D.	None of these

736.

In disc plough, the penetration of disc improves but width of cut reduces due to:

A.	Increasing tilt angle	B.	Reducing tilt angle
C.	Increasing disc angle	D.	Reducing disc angle

737.

The method of ploughing in which the plough works round a strip of unploughed land is:

A.	Gathering	B.	Casting
C.	Head land	D.	None of these

738.

The method of ploughing in which the plough works round the strip of ploughed land is:

A.	Gathering	B.	Casting
C.	Head land	D.	None of these

739.

An open trench left between two adjacent strips of land alter the plouging is:

A.	Furrow wall	B.	Dead furrow
C.	Back furrow	D.	Furrow slice

740.

An undisturbed soil surface of furrow:

A.	Furrow slice	B.	Furrow wall
C.	Furrow crown	D.	All are correct